CN110823387A - Method for adjusting wave bands of color temperature spectrum simulator based on synthesis principle of multiple narrow band wave bands - Google Patents
Method for adjusting wave bands of color temperature spectrum simulator based on synthesis principle of multiple narrow band wave bands Download PDFInfo
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- CN110823387A CN110823387A CN201910934974.XA CN201910934974A CN110823387A CN 110823387 A CN110823387 A CN 110823387A CN 201910934974 A CN201910934974 A CN 201910934974A CN 110823387 A CN110823387 A CN 110823387A
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- 238000001228 spectrum Methods 0.000 title claims abstract description 28
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 11
- 238000004088 simulation Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000003595 spectral effect Effects 0.000 claims description 2
- 229910052724 xenon Inorganic materials 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
- G01J5/601—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature using spectral scanning
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
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Abstract
The invention discloses a method for adjusting the wave band of a color temperature spectrum simulator based on a synthesis principle of a plurality of narrow band wave bands, which comprises the following steps: by adjusting the inclination angle between the band-pass filter of the band light intensity controllable unit of the color temperature spectrum simulator and the incident light, the narrow-band light band output with the center wavelength and the bandwidth capable of being finely adjusted can be obtained by utilizing the characteristics that the center wavelength of the peak value of the narrow-band filter moves towards the short-wave direction and the bandwidth is widened during oblique incidence, and meanwhile, the power of the band light intensity controllable unit is adjusted to make up for the loss increase caused by the oblique incidence.
Description
Technical Field
The invention relates to the technical field of photoelectric equipment, in particular to a band adjusting method of a color temperature spectrum simulator based on a synthesis principle of a plurality of narrow band bands.
Background
The working principle of the color temperature spectrum simulator based on the synthesis principle of a plurality of narrow band bands is as follows: the light emitted by the broad spectrum light source is split into a plurality of band light intensity controllable units with band pass filters with different peak center wavelengths and bandwidths to form a plurality of paths of narrow band light components with adjustable power, and a specific spectrum power distribution curve is obtained after the narrow band light components are converged and homogenized, as shown in figure 1. The spectral power distribution curve of the narrow-band light component output by the band light intensity controllable unit directly influences the simulation precision of the finally synthesized color temperature spectrum, and the simulation precision is mainly determined by the peak center wavelength and the bandwidth parameters of the band-pass filter. The parameters of the band-pass filter are always accurately configured according to requirements, but the inventor finds in the development process that: due to the influence of the process or other factors, the nominal value of the peak center wavelength of the actually purchased bandpass filter (finished product or customized) has a certain deviation from the actually measured peak wavelength, even a small deviation can cause an obvious recess of the output simulated spectrogram at the joint of two narrow-band light components, and the color temperature spectrum simulation error is increased sharply, which becomes a main factor for limiting the improvement of the precision of the color temperature spectrum simulator at present. There is a study (change of quality of Liu Yuan, Zhao Dong' e. analysis of oblique incidence filters [ J ] electronic world, 2013, 15: 28-29.) it has been found that in an optical system with a bandpass filter, if the incident light is not incident perpendicularly to the filter, the center wavelength of the peak of the filter shifts in the direction of short waves and the bandwidth widens. However, the incident light is obliquely emitted and the loss is increased, and this should be avoided as much as possible.
Disclosure of Invention
The invention aims to provide a method for adjusting the waveband of a color temperature spectrum simulator based on a synthesis principle of a plurality of narrow waveband bands, which can carry out online fine adjustment on the peak center wavelength and bandwidth parameters of a bandpass filter by adjusting the inclination angle between the bandpass filter of a light intensity controllable unit of each waveband and incident light instead of vertical incidence in the conventional use process and utilizing the characteristics that the peak center wavelength of the narrowband filter moves towards the short wave direction and the bandwidth expands when the narrowband filter is obliquely incident, and can solve the problem of loss increase caused by oblique incidence by increasing the power output of a narrow band light component corresponding to the bandpass filter, thereby achieving the aims of effectively compensating the depression of a simulated spectrogram and improving the spectrum simulation precision.
The invention adopts the following technical scheme:
in a color temperature spectrum simulator based on a synthesis principle of a plurality of narrow band bands, a plurality of band light intensity controllable units with band-pass filters with corresponding nominal peak center wavelengths and bandwidths respectively output narrow band light components with certain power according to the color temperature spectrum simulation requirement, and the designed simulated spectrum output can be obtained after convergence and dodging;
if the out-of-tolerance recess appears at the joint of the two narrow-band light components, adjusting the inclination angle of the optical filter with longer nominal center wavelength to enable the narrow-band light components output by the optical filter to be wholly translated towards the short wavelength direction, adjusting the power of the light intensity controllable unit of the waveband to make up for the loss increase caused by oblique incidence, filling up the out-of-tolerance recess appearing at the joint, and enabling the total precision of the output of the simulated spectrum to be highest; if a new out-of-tolerance recess appears in the adjustment, the above process is repeated to obtain the best simulated spectrum output.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, by adjusting the inclination angle between the band-pass filter and the incident light, a band-pass filter with a center wavelength and a bandwidth capable of being finely adjusted is obtained, and the filter configured in the optical system does not need to be provided with strict requirements on the accuracy of the center wavelength and the bandwidth, and only needs to be approximately near the technical parameters of the required center wavelength and the bandwidth.
Drawings
FIG. 1 is a schematic diagram of a sidereal color temperature spectrum simulator based on a synthesis principle of multiple narrow-band bands in the prior art.
FIG. 2 shows the + -10% envelope of the 3600K standard color temperature curve and the color temperature curve without adjustment.
FIG. 3 shows the + -10% envelope curve and the adjusted color temperature curve of the 3600K standard color temperature curve.
Wherein the reference numerals are as follows:
1-xenon lamp, 2-1 inlet and outlet optical fibers 13, 3-waveband light intensity control unit array, 4-13 inlet and outlet optical fibers 1 and 5-integrating rod.
Detailed Description
The present invention is further illustrated by the following figures and examples, which include, but are not limited to, the following examples.
Example 1
A fixed star color temperature spectrum simulator based on a synthesis principle of a plurality of narrow band bands in the prior art is disclosed in figure 1, a xenon lamp 1 which emits a wide spectrum in a band range of 350nm to 950nm and has relatively constant emission power is used as a light source, a light emitting surface of the xenon lamp is additionally provided with a light inlet 13 and a light outlet fiber 2 for splitting light to a band light intensity control unit array 3, the band light intensity control unit array 3 consists of 13 band-pass filters with different passing spectrum sections and a band light intensity control unit of an electric control diaphragm, the central wavelength interval of the 13 band-pass filters is 50nm (350 nm, 400nm, 450nm, …..950 nm) and the bandwidth is 50nm, the formed multi-path output light (representing light with different colors) with adjustable power (the light passing aperture is adjusted through the electric control diaphragm), and the multi-path output light with adjustable power (representing light with different colors) is converged and input into a six-integration prism rod 5 through the light inlet, the even light output of the required simulated star color temperature spectrum composition distribution can be obtained, and therefore the simulation of the star color temperature spectrum is realized. When the 3600K color temperature curve is simulated, the actual center wavelength of the purchased 650nm band-pass filter is slightly shifted (measured as 656 nm), so that the obvious out-of-tolerance recess appears at the positions of 620-640nm, as shown in FIG. 2. In fig. 2, reference numeral 6 denotes a 10% envelope curve on the 3600K standard color temperature curve, reference numeral 7 denotes a 10% envelope curve under the 3600K standard color temperature curve, and reference numeral 8 denotes an unadjusted 3600K color temperature curve. The inclination angle of the 650nm band-pass filter is adjusted by 10 degrees, so that the whole band of the band-pass filter is translated towards the short wavelength direction, meanwhile, the power of the light intensity controllable unit in the band, which is increased by 10 percent, is adjusted to make up for the loss increase caused by oblique incidence, the out-of-tolerance recess at the position of 620-640nm is filled, and the accuracy of the 3600K color temperature curve of analog output is obviously improved, as shown in fig. 3. In fig. 3, reference numeral 6 denotes a 10% envelope curve on the 3600K standard color temperature curve, reference numeral 7 denotes a 10% envelope curve under the 3600K standard color temperature curve, and reference numeral 8 denotes an adjusted 3600K color temperature curve.
The invention is well implemented in accordance with the above-described embodiments. It should be noted that, based on the above structural design, in order to solve the same technical problems, even if some insubstantial modifications or colorings are made on the present invention, the adopted technical solution is still the same as the present invention, and therefore, the technical solution should be within the protection scope of the present invention.
Claims (2)
1. The method for adjusting the wave band of the color temperature spectrum simulator based on the synthesis principle of a plurality of narrow-band wave bands is characterized by comprising the following steps of:
by adjusting the inclination angle between the band-pass filter of the band light intensity controllable unit of the color temperature spectrum simulator and incident light, the narrow-band light band output with the center wavelength and the bandwidth capable of being finely adjusted can be obtained by utilizing the phenomenon that the center wavelength of the peak value of the narrow-band filter moves towards the short-wave direction and the bandwidth expands when the narrow-band filter obliquely enters, and meanwhile, the power of the band light intensity controllable unit is adjusted to make up the loss increase caused by oblique incidence.
2. The method for adjusting the wavelength band of a color temperature spectrum simulator based on the synthesis principle of a plurality of narrow band bands according to claim 1, which comprises the following steps:
step S1: the band light intensity controllable units of the band-pass filters with corresponding nominal peak center wavelengths and bandwidths respectively output narrow-band light components with certain power according to the color temperature spectrum simulation requirement, and the designed simulated spectrum output can be obtained after the convergence and the dodging treatment;
step S2: when the narrow-band light components are output, if the junction of the two narrow-band light components has an out-of-tolerance recess, adjusting the inclination angle of the optical filter with a longer nominal center wavelength, and simultaneously adjusting the power of the light intensity controllable unit of the waveband to make up for the loss increase caused by oblique incidence, so that the output narrow-band light components are wholly translated towards the short wavelength direction, and the out-of-tolerance recess at the junction is filled;
step S3: if a new out-of-tolerance notch occurs in step S2, the above step S2 is repeated to obtain the best simulated spectral output.
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Citations (7)
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|---|---|---|---|---|
| US20150236221A1 (en) * | 2012-05-07 | 2015-08-20 | David Deak, SR. | Gauusian surface lens quantum photon converter and methods of controlling led colour and intensity |
| CN206151443U (en) * | 2016-08-23 | 2017-05-10 | 江苏鹰利视医疗器械有限公司 | Realize device of compound illumination of narrowband or broadband spectrum |
| CN106664765A (en) * | 2014-06-06 | 2017-05-10 | 克利公司 | Lighting devices with variable gamut |
| JP2018040935A (en) * | 2016-09-07 | 2018-03-15 | 株式会社Ｊｖｃケンウッド | Projection type image display device |
| CN207571095U (en) * | 2017-12-20 | 2018-07-03 | 南京彤乐仪器设备有限公司 | A kind of gas-chromatography flame photometric detector |
| CN109870523A (en) * | 2019-04-08 | 2019-06-11 | 山东悟空仪器有限公司 | Light source assembly, fluorescence detector and liquid chromatographic system |
| CN110073491A (en) * | 2016-12-13 | 2019-07-30 | 索尼半导体解决方案公司 | Image-forming component and electronic equipment |
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2019
- 2019-09-29 CN CN201910934974.XA patent/CN110823387A/en active Pending
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|---|---|---|---|---|
| US20150236221A1 (en) * | 2012-05-07 | 2015-08-20 | David Deak, SR. | Gauusian surface lens quantum photon converter and methods of controlling led colour and intensity |
| CN106664765A (en) * | 2014-06-06 | 2017-05-10 | 克利公司 | Lighting devices with variable gamut |
| CN206151443U (en) * | 2016-08-23 | 2017-05-10 | 江苏鹰利视医疗器械有限公司 | Realize device of compound illumination of narrowband or broadband spectrum |
| JP2018040935A (en) * | 2016-09-07 | 2018-03-15 | 株式会社Ｊｖｃケンウッド | Projection type image display device |
| CN110073491A (en) * | 2016-12-13 | 2019-07-30 | 索尼半导体解决方案公司 | Image-forming component and electronic equipment |
| CN207571095U (en) * | 2017-12-20 | 2018-07-03 | 南京彤乐仪器设备有限公司 | A kind of gas-chromatography flame photometric detector |
| CN109870523A (en) * | 2019-04-08 | 2019-06-11 | 山东悟空仪器有限公司 | Light source assembly, fluorescence detector and liquid chromatographic system |
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